2 4 1 9x July 8, 2019 16 32 64 128 2 4 1 9x )=- 6 2 3x 4 9x 1 2 1x 4 5x 1 9x 5x 1 2 =- 7 4 1 9x 4 4 9x 1 2 17 18 2x 2 4 9x )+ 1 1 4 9x 2 integration 2 3 4 9x 1 2 7 9 3x 2 x 4 =- 9x 1 − 1 2 4 9x 5 6 4 9x 1 2 binomial expansion 2 3 9x 4 )- 1 3 3 4 1 2 7 9x 13 2 1 9x 4 Integrate 1 /( 4 9x 2 dx